Bhagavad Gita 18.34
The conviction that always holds fast to rituals, self-interest, and wealth for the sake of what they may bring forth comes from passion.
यया तु धर्मकामार्थान् धृत्या धारयतेऽर्जुन।प्रसङ्गेन फलाकाङ्क्षी धृतिः सा पार्थ राजसी॥yayā tu dharmakāmārthān dhṛtyā dhārayate'rjuna|prasaṅgena phalākāṅkṣī dhṛtiḥ sā pārtha rājasī||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).